标签：script vue2 return meta 转换 pat type ret lan
computed 的作用主要是对原数据进行改造输出。改造输出：包括格式的编辑，大小写转换，顺序重排，添加符号……。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="../assets/js/vue.js"></script>
<title>Computed Option 计算选项</title>
</head>
<body>
<h1>Computed Option 计算选项</h1>
<hr>
<div id="app">
{{newPrice}}
</div>
<script type="text/javascript">
var app=new Vue({
el:‘#app‘,
data:{
price:100
},
computed:{
newPrice:function(){
return this.price=‘￥‘ + this.price + ‘元‘;
}
}
})
</script>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>computed Option 计算选项</title>
<script type="text/javascript" src="../assets/js/vue.js"></script>
</head>
<body>
<h1>computed Option 计算选项</h1>
<hr>
<div id="app">
{{newPrice}}
<ol>
<li v-for="item in reverseList"> {{item.title}}-{{item.date}} </li>
</ol>
</div>
<script type="text/javascript">
var newsList=[
{title:‘香港或就“装甲车被扣”事件追责 起诉涉事运输公司‘,date:‘2017/3/10‘},
{title:‘日本第二大准航母服役 外媒：针对中国潜艇‘,date:‘2017/3/12‘},
{title:‘中国北方将有明显雨雪降温天气 南方阴雨持续‘,date:‘2017/3/13‘},
{title:‘起底“最短命副市长”：不到40天落马，全家被查‘,date:‘2017/3/23‘},
];
var app = new Vue({
el: "#app",
data:{
price:100,
newsList:newsList
},
computed:{
newPrice:function(){
return this.price = "$" + this.price;
},
reverseList:function(){
return this.newsList.reverse();
}
}
})
</script>
</body>
</html>
标签：script vue2 return meta 转换 pat type ret lan
原文地址：https://www.cnblogs.com/xiaofandegeng/p/9029181.html
